Panasonic S-1821PT3H Operating Instructions Manual page 18

Troubleshooting
How to retrieve error codes
If the unit stops and the TIMER indicator blinks, use the remote control to retrieve the error code.
1 Press for 5 seconds
until a code is
displayed
3 Press for 5 seconds
to quit checking
Diagnostic display
E06
E12
E14
E15
E16
E20
F04
F06
F07
F08
F12
F31
H01
H02
H03
H31
L04
L10
L13
L18
P03
P04
P05
P07
P13
P15
P16
P22
P29
P31
18
ON ON
TIMER TIMER
OFF OFF
CANCEL CANCEL
AC AC
SET CHECK CLOCK SET CLOCK RESET RESET
Abnormality/Protection control
Outdoor Unit Error In Receiving Signal from Indoor Unit
Automatic Address Setting Start Prohibition
Duplication of Main Unit in Group Control
The Total Capacity of Indoor Units is Too Low
The Total Capacity of Indoor Units is Too High
Indoor/Outdoor Communication Wire Connection Abnormal
Outdoor Compressor Discharge Temperature Sensor (TD) Abnormal
Outdoor Heat Exchanger (Liquid) Temperature Sensor (C1) Abnormal
Outdoor Heat Exchanger (Center) Temperature Sensor (C2) Abnormal
Outdoor Air Temperature Sensor (TO) Abnormal
Outdoor Compressor Suction Temperature Sensor (TS) Abnormal
Outdoor Unit PCB EEPROM Abnormal
Compressor Over Current Detected
PAM/PFC Abnormal
Primary Current CT Sensor Abnormal
HIC Abnormal, DC Voltage Not Detected
Duplication of Outdoor Unit Address
Outdoor Unit Capacity Is Not Set Or Wrong Setting
Indoor Unit Type Is Not Set Or Wrong Setting
4-Way Valve Operation Abnormal
Compressor Discharge Temperature Abnormal
High Pressure Switch Is Activated
AC Power Supply Abnormal
HIC (IPM) Temperature Abnormal
Refrigerant Valve Abnormal
Insuffi cient Refrigerant or Valve Closed
Outdoor Compressor Over Current
Outdoor Fan Motor Abnormal
Outdoor Compressor Start-up Abnormal
Indoor Unit Group Control Abnormal
2 Press button
you hear beep sound, then
SET SET
write down the error code
Turn the unit off and inform
4
RC RC the error code to an
authorised dealer.
or until